From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marcelo Tosatti <mtosatti@redhat.com>
Subject: Re: [QEMU patch 2/2] kvm: allow configuration of tsc deadline timer
 advancement
Date: Wed, 10 Dec 2014 15:27:12 -0200
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Cc: kvm@vger.kernel.org, qemu-devel@nongnu.org,
	Luiz Capitulino <lcapitulino@redhat.com>,
	Rik van Riel <riel@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
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On Wed, Dec 10, 2014 at 06:09:19PM +0100, Paolo Bonzini wrote:
> 
> 
> On 10/12/2014 18:04, Marcelo Tosatti wrote:
> >> Please add an object property to the x86 CPU object.  It can then be
> >> configured with "-global" on the command line.
> > 
> > Don't want to allow individual values for different CPUs. 
> > It is a per-VM property.
> 
> Why?  It can cause busy waiting, it would make sense to make it stricter
> for realtime CPUs and leave 0 for non-realtime CPUs.
> 
> Paolo

HW timer behaviour should be consistent across CPUs, IMO.